二进制数python 2.7的字符串表示形式的按位运算 [英] bitwise operation on string representation of binary number python 2.7

问题描述

我想对两个二进制数字的字符串表示形式进行按位或运算，但是我不知道如何将字符串转换为原始二进制.

I would like to perform a bitwise OR on two string representations of binary numbers, but I can't figure out how to convert the strings into raw binary.

a ='010110'
b ='100000'

a = '010110'
b = '100000'

a |b

应产生:110110

should yield: 110110

然后我要计算开启位数.
这应该返回:
4

I then want to count the number of on bits.
This should return:
4

推荐答案

您可以使用内置的

You can convert the strings to binary using the built-in int() function and passing 2 as the base:

a = int('010110', 2)
b = int('100000', 2)

然后对这两个值进行或运算，并通过转换为字符串并计算"1"字符来对位数进行计数:

then OR the two values and count the bits by converting to a string and counting the "1" characters:

print bin(a | b).count("1")

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